JPS6269210U - - Google Patents
Info
- Publication number
- JPS6269210U JPS6269210U JP16088485U JP16088485U JPS6269210U JP S6269210 U JPS6269210 U JP S6269210U JP 16088485 U JP16088485 U JP 16088485U JP 16088485 U JP16088485 U JP 16088485U JP S6269210 U JPS6269210 U JP S6269210U
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- light beam
- recording medium
- piezoelectric element
- swings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は、本考案によるガルバノミラーの断面
図、第２図は、本考案によるガルバノミラーの動
作図、第３図は、本考案の別の実施例によるガル
バノミラーの断面図、第４図は、従来の光学式記
録再生装置の概略図、第５図は、従来のガルバノ
ミラーの断面図である。
１……ミラー、２……バイモルフ型圧電素子、
３……固定部、４……接着剤、５……導線、６…
…ストツパー、７……ミラー支持板、１１……光
源、１２……集光レンズ、１３……ビーム形状変
換光学系、１４……ビームスプリツタ、１５……
トラツキングミラー、１６……タンジエンシヤル
ミラー、１７……対物レンズ駆動装置、１８……
対物レンズ、１９……デイスク、２０……情報ト
ラツク、２１……シリンドリカルレンズ、２２…
…光検出器、３１……ミラー、３２……磁石、３
３……ゴム、３４……取り付け金具、３５……コ
イル。
FIG. 1 is a sectional view of a galvano mirror according to the present invention, FIG. 2 is an operational diagram of a galvano mirror according to the present invention, FIG. 3 is a sectional view of a galvano mirror according to another embodiment of the present invention, and FIG. 4 is a sectional view of a galvano mirror according to another embodiment of the present invention. 5 is a schematic diagram of a conventional optical recording/reproducing device, and FIG. 5 is a sectional view of a conventional galvanometer mirror. 1...Mirror, 2...Bimorph type piezoelectric element,
3...Fixing part, 4...Adhesive, 5...Conducting wire, 6...
... Stopper, 7 ... Mirror support plate, 11 ... Light source, 12 ... Condensing lens, 13 ... Beam shape conversion optical system, 14 ... Beam splitter, 15 ...
Tracking mirror, 16... Tangential mirror, 17... Objective lens drive device, 18...
Objective lens, 19... Disc, 20... Information track, 21... Cylindrical lens, 22...
...Photodetector, 31...Mirror, 32...Magnet, 3
3...Rubber, 34...Mounting metal fittings, 35...Coil.
Claims (1)
生する光学式記録再生装置において、前記記録媒
体上の情報トラツクを追跡するために前記光線を
前記記録媒体の半径方向へ振るトラツキングミラ
ーと、再生信号の時間変動を取り除くため前記光
線を前記情報トラツクの接線方向へ振るタンジエ
ンシヤルミラーの駆動に、バンモルフ型圧電素子
を用い、前記圧電素子の一端を前記ミラーの裏面
に固着し、残りの一端を固定部に固着したことを
特徴とするガルバノミラー駆動機構。 In an optical recording and reproducing apparatus that records and reproduces information by irradiating a light beam onto a disc-shaped recording medium, a tracking mirror that swings the light beam in a radial direction of the recording medium in order to track information tracks on the recording medium is provided. , a van morph type piezoelectric element is used to drive a tangential mirror that swings the light beam in the tangential direction of the information track in order to eliminate time fluctuations in the reproduced signal, one end of the piezoelectric element is fixed to the back surface of the mirror, and the remaining A galvanometer mirror drive mechanism characterized by having one end fixed to a fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16088485U JPS6269210U (en) | 1985-10-21 | 1985-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16088485U JPS6269210U (en) | 1985-10-21 | 1985-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6269210U true JPS6269210U (en) | 1987-04-30 |
Family
ID=31086684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16088485U Pending JPS6269210U (en) | 1985-10-21 | 1985-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6269210U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536050A (en) * | 1976-07-07 | 1978-01-20 | Toshiba Corp | Optical deflector |
| JPS57212630A (en) * | 1981-06-24 | 1982-12-27 | Fujitsu Ltd | Optical deflector |
-
1985
- 1985-10-21 JP JP16088485U patent/JPS6269210U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536050A (en) * | 1976-07-07 | 1978-01-20 | Toshiba Corp | Optical deflector |
| JPS57212630A (en) * | 1981-06-24 | 1982-12-27 | Fujitsu Ltd | Optical deflector |
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